For two years in the midst of my distress over the poverty which, thus suddenly driven into my consciousness, had become to me the "Weltschmerz," there was mingled a sense of futility, of misdirected energy, the belief that the pursuit of cultivation would not in the end bring either solace or relief.

The troubles confided to these private pages were not due to compunction for anything she had done, nor were they caused by any particular event; they expressed simply a general discontent with herself and a kind of Weltschmerz not uncommon in a young and thoughtful mind.

Clearly, González Iñárritu knows his Weltschmerz, and he burrows deep into the existential loneliness of each character to create a kaleidoscope of cumulative human sadness and grief over the state of the world.